The Monarch Butterfly is the most famous of the butterfly. It lives in North America and during the fall it flies South to Mexico and Central America. It is considered to be poisons because when the butterfly was a caterpillar, it would eat the poisonous plant called the Milk Weed, as it grew the Butterfly gains the poison from the Milk Weed. So it leaves a bitter taste in the predators mouth or a poisons taste. So predators will avoid the butterfly. It makes great photographs. The best time to see and take a picture of the Monarch is during late August or early September while it is flying South to their winter grounds.